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Classical electrodynamics uses a dielectric constant to describe the polarization response of electromechanical systems to changes in an electric field. We generalize that description to include a wide variety of responses to changes in the…

统计力学 · 物理学 2021-09-10 Yiwei Wang , Chun Liu , Bob Eisenberg

The momentum, electronic density, spin density, and interaction dependences of the exponents that control the $(k,\omega)$-plane singular features of the $\sigma =\uparrow,\downarrow$ one-electron spectral functions of the 1D Hubbard model…

强关联电子 · 物理学 2017-01-31 J. M. P. Carmelo , T. Cadez

We consider a Dirac electron in the presence of an exponentially decaying magnetic field. We obtain exact energy eigenvalues with a zero-energy state and the corresponding eigenfunctions. We also calculate the probability density and…

介观与纳米尺度物理 · 物理学 2009-12-01 Tarun Kanti Ghosh

While the dynamics for three-dimensional axially symmetric two-electron quantum dots with parabolic confinement potentials is in general non-separable we have found an exact separability with three quantum numbers for specific values of the…

介观与纳米尺度物理 · 物理学 2009-11-07 R. G. Nazmitdinov , N. S. Simonovic , Jan M. Rost

Zitterbewegung is a striking consequence of relativistic quantum mechanics which predicts that free Dirac electrons exhibit a rapid trembling motion even in the absence of external forces. The trembling motion of an electron results from…

介观与纳米尺度物理 · 物理学 2016-12-20 I. Stepanov , M. Ersfeld , A. V. Poshakinskiy , M. Lepsa , E. L. Ivchenko , S. A. Tarasenko , B. Beschoten

An improved formalism of the two-neutrino double-beta decay ($2\nu\beta\beta$-decay) rate is presented, which takes into account the dependence of energy denominators on lepton energies via the Taylor expansion. Till now, only the leading…

核理论 · 物理学 2018-04-13 Fedor Šimkovic , Rastislav Dvornický , Dušan Štefánik , Amand Faessler

The dielectric response and structural properties of finite-temperature electron liquids are central to accurately describing the physical behavior of electronic systems. This study presents a robust analytical model for the static…

等离子体物理 · 物理学 2026-03-19 Chengliang Lin , Yong Hou , Jianmin Yuan , Yong Wu , Jianguo Wang

Starting with the Dirac equation for an electron in a constant electromagnetic background on a noncommutative (NC) plane, we obtain a gauge invariant description of the system. Surprisingly, the dynamics of the system is dictated by the…

高能物理 - 理论 · 物理学 2025-01-27 Aslam Halder , Sunandan Gangopadhyay , Anirban Saha

We consider properties of a two-dimensional electron system in a random magnetic field. It is assumed that the magnetic field not only influences orbital electron motion but also acts on the electron spin. For calculations, we suggest a new…

介观与纳米尺度物理 · 物理学 2009-11-07 Kazutaka Takahashi , K. B. Efetov

A classical model of the electron based on Maxwell's equations is presented in which the wave character is described by classical physics. Most properties follow from the description of a classical massless charge circulating with v\,=\,c.…

经典物理 · 物理学 2021-10-07 G. Poelz

We study the artificial molecular states formed in laterally coupled double semiconductor nanorings by systems containing one, two and three electrons. An interplay of the interring tunneling and the electron-electron interaction is…

介观与纳米尺度物理 · 物理学 2008-12-18 T. Chwiej , B. Szafran

We show that the energy spectrum of the one-dimensional Dirac equation in the presence of a spatial confining point interaction exhibits a resonant behavior when one includes a weak electric field. After solving the Dirac equation in terms…

高能物理 - 理论 · 物理学 2009-11-11 Luis Gonzalez-Diaz , Victor M. Villalba

The electron states in a size-quantaized coated semiconductor wire in a uniform magnetic field applied parallel to the wire axis is considered. The wave functions are found and the equation for determination of energy eigenvalues depending…

凝聚态物理 · 物理学 2007-05-23 M. M. Aghasyan A. A. Kirakosyan

This paper applies the isotopic field-charge spin theory (Darvas, IJTP 2011) to the electromagnetic interaction. First there is derived a modified Dirac equation in the presence of a velocity dependent gauge field and isotopic field charges…

综合物理 · 物理学 2018-09-13 György Darvas

We compute the energy spectrum of the ground state of a 2D Dirac electron in the presence of a Coulomb potential and a constant magnetic field perpendicular to the plane where the the electron is confined. With the help of a mixed-basis…

介观与纳米尺度物理 · 物理学 2009-11-10 Victor M. Villalba , Ramiro Pino

The thermal self-energy of an electron in a static uniform magnetic field $B$ is calculated to first order in the fine structure constant $\alpha $ and to all orders in $eB$. We use two methods, one based on the Furry picture and another…

高能物理 - 唯象学 · 物理学 2009-10-28 Per Elmfors , David Persson , Bo-Sture Skagerstam

Our electronic structure theory for crystalline solids is commonly built on the periodic potential assumption $V(\mathbf r)=V(\mathbf r+\mathbf R)$ for every lattice translation $\mathbf R$, enabling Bloch eigenstates, crystal momentum as a…

强关联电子 · 物理学 2026-03-26 Wouter Montfrooij

Exact calculations of collective excitations and charge/spin (pseudo)gaps in an ensemble of bipartite and nonbipartite clusters yield level crossing degeneracies, spin-charge separation, condensation and recombination of electron charge and…

强关联电子 · 物理学 2009-11-13 A. N. Kocharian , G. W. Fernando , K. Palandage , J. W. Davenport

In this paper, we present the rigorous expression of the ground state energy and study the phase transition of the three-dimensional homogeneous electron gas by the eigenfunctional theory. The ground state energy is decided completely by…

强关联电子 · 物理学 2015-03-17 Yu Zhi-Ming , Wang Qing-Wei , Liu Yu-Liang

Well over a century after the discovery of the electron, we are still faced with serious conceptual issues regarding precisely what an electron is. Since the development of particle physics and the Standard Model, we have accumulated a…

综合物理 · 物理学 2015-11-25 Kevin H. Knuth